Preparation method of ergosterol

A technology for ergosterol and toluene, applied in the field of preparation of ergosterol, can solve the problems of difficulty in realizing industrialized production, low yield of light ethanol extraction, low yield of ergosterol, etc., and achieves low price, low production cost, improved purity and high purity. Yield effect

Pending Publication Date: 2022-02-11
SICHUAN NEIJIANG HUIXIN PHARMA
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  • Abstract
  • Description
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Problems solved by technology

The defect of adopting this method is that the extraction yield with light ethanol is low; It can cause people to lose consciousness or even die, and it is flammable a...

Method used

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all conventional products that could be purchased from the market.

[0014] The technical solutions of the present invention will be further limited below in conjunction with specific embodiments, but the scope of protection is not limited to the descriptions made.

[0015] The preparation method of ergosterol comprises the following steps:

[0016] a. Put the alkali and sodium chloride into the saponification pot, add yeast powder under stirring, the ratio of yeast powder, alkali and ...

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Abstract

The invention relates to a preparation method for producing ergosterol by using yeast, belonging to the technical field of fine chemical engineering. The preparation method comprises the following steps of: mixing the yeast with alkali and a sodium chloride solution, carrying out saponifying, performing extracting by using methylbenzene, and successively carrying out washing, concentrating, refining and drying in vacuum to obtain a finished ergosterol product. According to the preparation method of the ergosterol, the yeast, the alkali, the sodium chloride, the methylbenzene, the activated carbon, the ethanol and other common chemical raw materials and auxiliary materials and common chemical equipment are utilized, industrial production of the ergosterol is achieved, a production process is very simple and convenient, and production cost is low; the volatilization speed of the methylbenzene is low and is only 1/3 of the original volatilization speed of the methylbenzene; and through reasonable selection of the ratio of each solution and temperature control, the purity and yield of the ergosterol are effectively improved, so a raw material guarantee is provided for mass production of vitamin D2.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a method for preparing ergosterol. Background technique [0002] Ergosterol is the most important phytosterol, which exists in yeast and some plants. When it is irradiated by ultraviolet rays, one of the four carbon rings in the molecule breaks and becomes vitamin D 2 , which is industrially mass-produced vitamin D 2 main raw material. due to vitamin D 2 It is one of the trace organic compounds necessary for humans and animals to maintain normal life activities and health. Vitamin D can be added in moderation in medicines, food and feed 2 To meet the regular intake of people or animals from the outside world. Vitamin D 2 At present, the annual consumption in the world is about 1,800 tons, of which about 70% is used for feed additives. The annual demand in my country is about 100 tons, and vitamin D in my country 2 The annual production and sales volume of ergosterol ...

Claims

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Application Information

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IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 陈国苹黄全军
Owner SICHUAN NEIJIANG HUIXIN PHARMA
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